Annealing-box.



No. 700,962. Patented May 27, I902. J. J. MARKEY.

ANNEALING BOX.

application filed Nov. 22, 1901.

(No Model.)

11V VENT 0R:

a i rg, ZMW

ATTORNEY.

Nrrnn STATES ATENT OFFICE.

JOHN J. MARKEY, OF ANDERSON, INDIANA.

ANNEALlNG-BOX.

$PEGIFICATION formingpart of Letters Patent'No. 700,962, dated May 27, 1902.

Application filed November 22, 1901. Serial No. 83,224. (No model-J To all whom it may concern:

Be it known that 1, JOHN J. MARKEY, acitizen of the United States, residing at Anderson, in the county of Madison and State of Indiana, have invented new and useful Improvements in Annealing-Boxes, of which the following is a specification.

The invention relates to the details of construction, and has particular reference to the part of an annealing-box that is commonly termed the stand, and it also refers to devices for lifting the box and carrying it with its load of tin-plate, the object of the invention being to provide stands and lifting wings or lugs therefor which may be durable and economical in use, as well as cheaply constructed, and which maybe operated advantageously in the matter of saving time.

Further objects are to provide symmetrically-formed stands havingthe least number of parts possible in their construction, so as to avoid deterioration as a result of the action of heat in the annealing process and at the same time eliminate surplusage of material and consequent weight.

These and other objects not hereinbefore referred to are accomplished by the construction illustrated in the drawings forming part of this specification, reference being had to the several figures thereof and to the reference characters thereon, similar characters indicating corresponding parts in the several views.

Referring now to the drawings, Figure 1 is a perspective view of a complete annealingbox constructed in conformity to my invention; Fig. 2, a top plan view of the stand forming part of the box and showing the integral lifting-wings extending from the sides thereof; Fig. 3, a transverse vertical sectional view of the stand as on line X X in Fig. 2, fragments of the lifter being connected to the lifting-wings; Fig. 4:, a side elevation of the box complete and the principal part of a preferred form of lifter connected thereto; and Fig. 5, an end elevation of the complete box together with the lifter in position, as when about to be connected to the lifting-wings.

In construction the stand A is composed of a plane plate of wrought-iron (or steel) of suitable thickness and first shaped in plan so that the blank has wing projections at opposite edges to suit the requirements. The plate is thenheated and pressed to substantially the form of a pan having two parallel vertical ends CL and?) and two similar sides (Z ande of suitable length and height. Curved integral wings B and O extend droopingly from the sides outwardly and downwardly from the upper edges thereof, I so that the wings have upper inclined facesfand also an under socket-like recess 7L close to the sides d and 6, there being an under inclined face extending from the lower edge of each wing to the recess in which the lifter-bar finds its hearing. The ends and sides a. b d 6 may be either perpendicular to the base or they may be slightly oblique, extending outwardl y from thebase, and it is preferable that thecorners g be curved, so that the packingsand may be induced to gravitate to the joint between the stand and the removable portion of the box. The stand is suitably perforated, and hollow cast iron legs D are secured thereto by means of rivets 2', the legs being countersunk-or recessed at their lower ends to receive the rivet-heads, the perforations in the stand-bottom being countersunk at the upper side of the bottom and the rivets upset therein. In some cases theboxes are oblong in plan, as shown, While in other cases it is preferred that they be square, and in either case the Wings B and O extend nearly the whole length of the sides, thus forming substantially reinforcing-ribs at the upper edges of the sides and adding both vertical and lateral strength to the sides, which is desirable, besides affording strong lifting means where by to sustain theload placed upon the stand, it being understood that the stand must carry piles of black-plate. In this construction all acute angles are avoided, thus removing the liability to cracking of the structural plates.

The removable part E of the box (or what is usually termed the box in distinction to the bottom or stand) is of well-known form and construction, being designed to set with its open side (or, strictly, its bottom) .upon the bottom of the stand, thus completing the box, and it is provided with lugs F, whereby to lift the same from its bottom or stand. This part E is formed of two pieces, all joints welded, so that a strong symmetrical structure is insured, and tho lifting-lugs are new ally in the form of pins riveted into suitable perforations in the sides of the structure.

The lifter, which is illustrated to explain the utility of the invention, is usually furnished with each one or each set of boxes and comprises, essentially, a pair of slings suitably coupled together and preferably spread apart, so that they may normally hang perpendicularly at the sides of the box. In the present case I employ two slings G and H, substantially alike, each having diverging branches j and 7c, the lower separated ends of which are integrally connected by a (normally) horizontal round bar 1, adapted to fit into the recesses h under the liftingwings and also to slide down the inclined faces f as well as upwardly against the opposite under sides of the wings to the recesses h when being elevated. A beam I has a central clevis J connected thereto by means of a pivot pin or bolt a, and the slings are connected to the ends of the beam by means of pivot pins or bolts m. The slings have upwardly-extendin g handles 'I'L, forming guiding-levers of suitable length.

In practical use it will be understood that the box full of black-plate is to be lowered into a hot pit or into a furnace to be heated and at the proper time to be lifted therefrom, after which the part E is to be lifted from the bottom or stand A in order to remove the annealed plate. The clevis J of course is to be connected toa lifting cable or chain suitably operated.- In connecting the lifter-slings they should descend at the sides of the box, as indicated in Fig. 5, until the bars 5 strike the facesfand slide down and over the lower extremities of the wings, when the lower ends of the slings will by force of gravity approach the sides d e of the stand. An upward movement of the slings will new force the bars I to enter the recessed seats h, and thus lift the box and its load. When disconnecting the lifter, the beam I being permitted to descend a short distance, the handles n may be moved toward each other, thus spreading the lower ends of the slings apart, when the lifter may be elevated. It

will be seen that in connecting the lifter to sides, whereby combined lifting and reinforcing devices are provided, and a box-body.

2. An annealing-box stand formed of a blank having projecting portions at opposite edges thereof, the projecting portions bent over from the edges of the stand sides and forming combined lifting wings or lugs and reinforcing-ribs for the stand sides.

3. An annealing -boX stand and liftingwings therefor composed of a single malleable plate-blank having projecting portions at op posite edges thereof, all of uniform gage thickness, the projecting portions bent over in the forms of inverted troughs.

4. In an annealing-box stand, the combination of the stand-body having the bottom and sides thereof composed of metal of uniform gage thickness, two of the sides having projecting portions extending from the edges thereof, and the lifting-wings consisting of said projecting portions turned over immediately at the edges of said sides.

5. In an annealing-box, the combination of the box-body, the stand-body formed of the blank having the projecting wings extending from opposite edges thereof, the lifting wings or lugs consisting of said projecting wings bent over from said edges in the forms of inverted troughs, and the supporting-legs, sub stantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN J. MARKEY.

Witnesses:

HARRY D. PIERSON, E. T. SILvIUs. 

